4256280 has 128 divisors (see below), whose sum is σ = 16243200. Its totient is φ = 971136.

The previous prime is 4256267. The next prime is 4256281. The reversal of 4256280 is 826524.

4256280 = 190² + 191² + ... + 269².

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7279 + ... + 7841.

It is an arithmetic number, because the mean of its divisors is an integer number (126900).

Almost surely, 2^4256280 is an apocalyptic number.

4256280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4256280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8121600).

4256280 is an abundant number, since it is smaller than the sum of its proper divisors (11986920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4256280 is a wasteful number, since it uses less digits than its factorization.

4256280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 4256280 is about 2063.0753742896. The cubic root of 4256280 is about 162.0603341797.

The spelling of 4256280 in words is "four million, two hundred fifty-six thousand, two hundred eighty".